We're dividing 669489 by 66 
We want to figure out the number of times 669489 can be divided by 66.

Step 1:
6 divided by 66 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 66

On to step 2:
66 divided by 66 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 66 from 66 and we're left with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 66

Advancing to step 3:
If we divide 9 by 66, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 9, we get 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 66

Advancing to step 4:
The number 66 fits into 94 1 times, leaving a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 101.0
Deduct 66 from 94 and we're left with 28.
Take the next digit (8) from the dividend and append it to 28, then repeat: 288 / 66

On to step 5:
66 can be fit into 288 4 times, resulting in a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 1014.0
The remainder is 24 after subtracting 264 from 288.
Bring next digit (9) of the dividend behind the 24 and repeat the process: 249 / 66

Going ahead to step 6:
66 can be fit into 249 3 times, resulting in a remainder of 51.
Put 3 as the next digit of the answer. 
Result so far: 10143.0
Subtracting 198 from 249 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
When dividing 510 by 66, we get 7 with a remainder of 48.
Write down 7 as next digit of the result. 
Result so far: 10143.7
If we subtract 462 from 510, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 8:
480 divided by 66 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 10143.77
Deduct 462 from 480 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 10143.77, with a leftover of 0.018.